phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8eb2cd918c92447a56bf9a8f5c3f85d3', -1, 1747543114, 1747543114, '12bc9656', 34, 0, 0)

Line : 190
File : sessions.php